Synthesis and characterization of soluble low??bandgap oligothiophene??[all]??S, S??dioxides??based conjugated oligomers and polymers

E Amir, K Sivanandan, JE Cochran…

Index: Amir, Elizabeth; Sivanandan, Kulandaivelu; Cochran, Justin E.; Cowart, John J.; Ku, Sung-Yu; Seo, Jung Hwa; Chabinyc, Michael L.; Hawker, Craig J. Journal of Polymer Science, Part A: Polymer Chemistry, 2011 , vol. 49, # 9 p. 1933 - 1941

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Citation Number: 33

Abstract

Abstract The synthesis and characterization of a new family of soluble oligothiophene-S, S- dioxides and their use as building blocks to form polythiophene-S, S-dioxides via microwave- assisted Stille coupling polymerization are described. Incorporation of the sulfone group into the polythiophene backbone leads to narrowing of the polymer bandgap, and while the energies of both Frontier orbitals in polythiophene-S, S-dioxide are lower with respect to ...